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The BERNARD 402-11 is a neck insulator designed for MIG welding guns. It fits between the neck and the nozzle assembly, providing electrical isolation and protecting the gun body from heat and spatter. This component is a consumable part of the MIG gun front-end assembly and is typically replaced during routine maintenance when physical damage, cracking, or carbon buildup causes arcing or nozzle misalignment. Welding technicians and fabricators working with BERNARD MIG guns should keep these on hand to minimize downtime during heavy-use operations.
Neck insulators see the most wear in high-amperage or high-duty-cycle applications where heat and spatter accumulate rapidly. This insulator is suited for professional shop environments and field welding operations where BERNARD MIG gun components are in use. It is sold individually, making it practical to replace single worn components without purchasing a full front-end kit.
Designed as an OEM-style replacement neck insulator for BERNARD MIG welding guns. Confirm fitment against your specific BERNARD gun model before ordering.
A qualified welder or welding equipment technician should perform front-end consumable replacement. Disconnect the MIG gun from the wire feeder and power source before disassembling the nozzle, contact tip, or insulator. Inspect the neck threads and seating surfaces for damage before installing the new insulator. Do not overtighten the nozzle after reinstallation, as this can crack the insulator.
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